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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Correlation between ultradian and circadian rhythms in the cricket, Teleogryllus oceanicus : potential role for the period gene

Lupien, Mathieu. January 1998 (has links)
We investigated the relationship between rhythms occurring at different time-scales, namely circadian and ultradian rhythms. Furthermore, we examined the potential role of the period (per) gene, a known clock gene initially isolated in Drosophila, for regulating these rhythms in the wild-type cricket, Teleogryllus oceanicus . Here we report a positive correlation between circadian and ultradian rhythms in crickets. Thus, crickets with a slow endogenous circadian rhythm also have a slow ultradian rhythm, and conversely, animals with a fast endogenous circadian rhythm have a fast ultradian rhythm. In addition to this correlation, we observed PER-like immunoreactivity in the regions of the cricket nervous system involved in regulating these rhythms, namely the brain, in particular the optic lobes, and the meso- and metathoracic ganglia. We thus conclude that different time-scale rhythms may be regulated by a common setting element, a role potentially played by the per gene.
2

Correlation between ultradian and circadian rhythms in the cricket, Teleogryllus oceanicus : potential role for the period gene

Lupien, Mathieu January 1998 (has links)
No description available.

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